Radial air flow controller



FIG. 1 is a front view of the radial air flow diffuser, the back view being identical;

FIG. 2 is a top view thereof;

FIG. 3 is a right side view thereof, the left side view being identical;

FIG. 4 is a bottom view thereof; and

FIG. 5 is a top perspective view thereof; and,

FIG. 6 is a bottom perspective view thereof.

The broken lines shown in FIGS. 1–5 show environmental structure and form no part of the claimed design. 

The ornamental design for a radial air flow controller, as shown and described. 